How to Increas Image size upto 10MB

Hey! guys how to edit my.ini file at ":\xampp\mysql\bin\" to upload image of bigger size supposed to be 10 MB. I recently make a change in my.ini file in max_allowed_packet to be 10 MB. But it doesn't change alot, a little bit has been changed. Now i can upload image upto 2048 KiB in MySQL & via PHP user input form then the previous which was 100 KB. But how to make it more bigger? Please help me!